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isaaccorleyisaaccorley/geospatial-skills/skills/geospatial-viewers/SKILL.md

geospatial-viewers

Skill78 starsChanged 8 months agoApache-2.0View on GitHub

This skill should be used when viewing, previewing, or inspecting geospatial files from the command line. Covers interactive raster viewing (viewtif), interactive vector viewing (viewgeom), and non-interactive terminal-inline viewing (viewinline) for GeoTIFF, Shapefile, GeoJSON, GeoPackage, GeoParquet, CSV, HDF, NetCDF, and more.

The file

We split this skill into the rules it gives an agent

6 rules. About 0 are common, 0 are distinctive, and 6 are very specific to this project.

  • ≈0

    Common · estimate

    Many files like this have a rule of this kind.

  • ≈0

    Distinctive · estimate

    This author's own choices. Worth a look.

  • 6

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Very specific:

    Need interactive zoom/pan/contrast?: Use viewtif (rasters) or viewgeom (vectors).

    line 18
  2. Very specific:

    Quick inline preview in iTerm2/WezTerm/Konsole?: Use viewinline (no GUI window, renders in terminal).

    line 19
  3. Very specific:

    CSV/Parquet analysis (stats, histograms, SQL)?: Use viewinline.

    line 20
  4. Very specific:

    Vector file as table (describe, filter, sort)?: Use viewinline --table.

    line 21
  5. Very specific:

    Headless server / SSH / HPC?: Use viewinline (renders on local terminal, no X11 needed).

    line 22
  6. Very specific:

    Always prepend uvx to auto-install and run without modifying the local environment:

    line 26

≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

Geospatial Viewers

Three CLI tools for quick-look inspection of geospatial data. Always run them via uvx so they are auto-installed without polluting the project environment.

ToolPurposePyPI
viewtifInteractive Qt viewer for rasters (GeoTIFF, HDF, NetCDF, FileGDB)uvx viewtif
viewgeomInteractive Qt viewer for vector datasetsuvx viewgeom
viewinlineNon-interactive terminal-inline viewer (rasters, vectors, CSV, Parquet)uvx viewinline

Choosing the Right Tool

  • Need interactive zoom/pan/contrast? Use viewtif (rasters) or viewgeom (vectors).
  • Quick inline preview in iTerm2/WezTerm/Konsole? Use viewinline (no GUI window, renders in terminal).
  • CSV/Parquet analysis (stats, histograms, SQL)? Use viewinline.
  • Vector file as table (describe, filter, sort)? Use viewinline --table.
  • Headless server / SSH / HPC? Use viewinline (renders on local terminal, no X11 needed).

Running with uvx

Always prepend uvx to auto-install and run without modifying the local environment:

uvx viewtif file.tif
uvx viewgeom boundaries.geojson
uvx viewinline file.tif

For optional extras, use the --from flag:

uvx --from "viewtif[geo]" viewtif raster.tif --shapefile overlay.shp
uvx --from "viewtif[netcdf]" viewtif data.nc
uvx --from "viewgeom[parquet]" viewgeom data.geoparquet

Quick Reference

# Raster inspection
uvx viewtif image.tif
uvx viewtif image.tif --shapefile boundaries.shp
uvx viewtif image.tif --rgb 4 3 2
uvx viewtif image.tif --vmin 280 --vmax 320
uvx viewtif huge_raster.tif --scale 10

# NetCDF / HDF
uvx --from "viewtif[netcdf]" viewtif data.nc --subset 1 --timestep 100

# FileGDB raster
uvx viewtif "OpenFileGDB:/path/to.gdb:RasterName"

# Remote files
AWS_NO_SIGN_REQUEST=YES uvx --from "viewtif[geo]" viewtif s3://bucket/raster.tif --shapefile local.shp

# Vector inspection
uvx viewgeom boundaries.geojson
uvx viewgeom landuse.shp --column area_sqkm
uvx viewgeom earthquake.geojson --filter "mag > 5"
uvx viewgeom earthquake.geojson --duckdb "SELECT * FROM data WHERE mag > 5"
uvx viewgeom earthquake.geojson --duckdb "SELECT mag FROM data WHERE mag > 5" --save filtered.geojson

# Terminal-inline preview
uvx viewinline file.tif --colormap
uvx viewinline sentinel2.tif --rgb 4 3 2
uvx viewinline boundaries.geojson --color-by population
uvx viewinline file.nc --subset 1 --timestep 10

# CSV / Parquet analysis
uvx viewinline data.csv --describe
uvx viewinline data.csv --hist area_km2 --bins 30
uvx viewinline data.csv --scatter longitude latitude
uvx viewinline data.csv --sql "SELECT State, AVG(Income) FROM data GROUP BY State"

# Vector as table
uvx viewinline counties.shp --table --describe
uvx viewinline data.geoparquet --table --where "POP > 100000" --sort POP --desc

# Image gallery
uvx viewinline outputs/ --gallery 4x3

References

  • references/viewtif.md
  • references/viewgeom.md
  • references/viewinline.md

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